Protecting the Ocean at the Source

 Ocean Health & Plastics

The ocean absorbs 30% of the CO₂ we produce¹ and generates oxygen for over half of the world.¹³ Plastic waste is slowly destroying that capacity.

•     23 million tonnes - of plastic leak into waterways every year

•     3.4% - of global GHG emissions come from plastic production (a footprint larger than the entire aviation industry)⁸

This biological engine is being dismantled by systemic microplastic contamination and ecosystem destabilization. To protect these foundational systems, we must address the crisis at its source, moving toward a materials revolution that protects all marine life.

01 - The Plastic Crisis

Eliminating the 'Toxic Reservoir'

Most people imagine plastic pollution as a littering problem, wrappers on beaches or bottles in rivers. The reality is far more systemic. 23 million tonnes of plastic leak into aquatic environments every year, driven heavily by mismanaged waste on land.³

 
The Transport Pathway: Rivers act as the main path for this plastic pollution, with research showing that more than 1,000 rivers account for 80% of global riverine plastic emissions into the ocean.² During heavy rain events, plastics are swept into stormwater drains and river networks, acting as direct highways to coastal ecosystems. Additionally, spunbond polymers, like those used in PPE, are easily lifted by wind from open disposal sites and carried directly into waterways.¹¹

The Fragmentation Engine: Once exposed to environmental stress, these plastics create a permanent risk pool for generations. Traditional plastics do not safely biodegrade; they are broken down into microplastics by wave action and UV radiation. A single discarded face mask, for example, can release over 1.5 million microplastics into the water, accelerating their entry into the marine food web where they are ingested by foundational organisms.¹²

Figure 1: Fate and Transport of plastics from land to microplastics in the ocean

This isn't a future risk. It's a slow-motion crisis already underway, fueled by the sheer volume of single-use products we discard every day.   

This constant influx of plastics doesn't just accumulate; it transforms. At the microscopic level, fragmentation shifts the problem from a pollution crisis into a biological one, with consequences that reach the very systems regulating Earth's atmosphere.

02 - Biological Resilience

Preserving Foundational Marine Life

The accumulation of plastic waste in high-density zones like the Great Pacific and Great Atlantic Garbage Patches indicate more than a surface-level pollution crisis. In addition to being the largest carbon sink, the ocean is also the planet's primary oxygen powerhouse, generating over 50% of the global oxygen supply, and is heavily dependent on the stability of its ecosystems that are being actively dismantled by the infiltration of microplastics into the marine food web.¹³

The Prochlorococcus Vulnerability: At the foundational level resides Prochlorococcus, the most abundant photosynthetic organism on Earth, responsible for one in every ten breaths we take.¹³ The growth and photosynthetic capacity of these essential bacteria are severely affected by leachates from common plastics, specifically HDPE and PVC. Exposure to these pollutants triggers genome-wide transcriptional changes, reducing the efficiency with which these organisms produce oxygen and cycle carbon and thus degrading the atmospheric buffer from the bottom up.¹⁴

^{Figure 2: Microplastic biomagnification across the marine trophic chain}

Disruption of the Biological Carbon Pump: The ocean's ability to mitigate climate change relies on the Biological Carbon Pump, the natural mechanism that transfers carbon from the atmosphere to the deep sea. Microplastic accumulation directly interferes with the metabolic health of both zooplankton and phytoplankton, by weakening the pump's capacity to sequester carbon.¹⁵

In high-accumulation areas, these organisms mistake microplastic fragments for nutrient sources, leading to synthetic starvation. This not only impacts species survival but facilitates the biomagnification of toxins, as synthetic pollutants and associated pathogens are carried up the trophic levels to larger marine organisms and eventually the food on our plates.

03 - The Bigger Picture  

Preserving the Foundation of Life

Traditional plastics do more than just pollute; they harm vital biological processes which the entire marine food web depends on. When primary producers like Prochlorococcus suffer from leachate exposure and synthetic starvation, the ocean loses its structural resilience and its capacity to function as the planet's primary climate buffer.

By transitioning to bio-based materials, research suggests that 73 millions toones of  CO₂ could be saved annually^9, a systemic shift that OKOmer advances directly, achieving a 90% reduction in carbon footprint compared to traditional plastics, saving nearly 2.1 billion kg of CO₂ eq annually.¹⁰

OKOsix targets the most persistent, high-volume waste streams, such as PPE, personal care and hygiene products, because that's where upstream intervention creates the greatest downstream impact. The goal isn't incremental improvement; it's systemic change that OKOmer can provide to protect our oxygen producers and restore the biological carbon pump, ensuring a thriving ocean for generations to come.

Author: Arman Shahinfar
Reviewed by Dr. Sanjay Mohanty (UCLA)

SOURCES

1 United Nations. "The Ocean - the world's greatest ally against climate change." UN Climate Action. Available at: un.org/en/climatechange/science/climate-issues/ocean

2 Meijer, L. J. J., et al. (2021). "More than 1000 rivers account for 80% of global riverine plastic emissions into the ocean." Science Advances. Available at: science.org/doi/10.1126/sciadv.aaz5803

3 United Nations Environment Programme (UNEP). "About Plastic Pollution." LEAP Toolkit.Available at: leap.unep.org/en/knowledge/toolkits/plastic/about;

4 Bio-based and Biodegradable Industries Association (BBIA). "A Circular Economy for Nappies." (2020). Available at: bbia.org.uk ;

5 ScienceDirect. Research on diaper degradation and environmental impact. Available at: sciencedirect.com/science/article/pii/S0048969722024329#bbb0425

6 OceansAsia / Ali.fish. "Report Predicts 1.56 Billion Face Masks Have Entered the Ocean in 2020." Available at: ali.fish/blog/report-predicts-15-billion-face-masks-have-entered-the-ocean-in-2020-ym7kx ;

7 Stanford University. "Planet-Friendly Periods." Stanford Magazine. Available at: stanfordmag.org/contents/planet-friendly-periods ;

8 U.S. Environmental Protection Agency (EPA). "Impacts of Plastic Pollution." Available at: epa.gov/plastics/impacts-plastic-pollution ;

9 European Bioplastics. "Do bioplastics have a lower carbon footprint than fossil-based plastics?" Available at: european-bioplastics.org/faq-items/do-bioplastic-have-a-lower-carbon-footprint-than-fossil-based-plastics-how-is-this-measured/ ;

10 OKOsix. Internal carbon footprint and lifecycle reduction calculations. Available here: https://docs.google.com/spreadsheets/d/11dZxzP1nEWxIJ8zfLNBFeqm0GFwsvhRUXjCSC_gT7fY/edit?gid=0#gid=0

11 Fadare, O. O., & Okoffo, E. D. (2020). "Covid-19 face masks: A potential source of microplastic fibers in the environment." Science of The Total Environment. Available at: doi.org/10.1016/j.scitotenv.2020.140279

12 Wang, Z., et al. (2021). "Disposable masks release microplastics to the aqueous environment with exacerbation by natural weathering." Journal of Hazardous Materials. Available at: pmc.ncbi.nlm.nih.gov/articles/PMC8734940/

13 NOAA (National Oceanic and Atmospheric Administration) "How much oxygen comes from the ocean?" National Ocean Service. Available at: oceanservice.noaa.gov/facts/ocean-oxygen.html

14 Tetu, S. G., et al. (2019). "Plastic leachates impair growth and oxygen production in Prochlorococcus, the ocean's most abundant photosynthetic bacteria." Communications Biology. Available at: nature.com/articles/s42003-019-0410-x

15 Obaidullah, M. J., et al. (2026) "Microplastics hamper the ocean's capacity to absorb CO2 by disrupting phytoplankton and zooplankton metabolism." Journal of Hazardous Materials: Plastics.